The price for the BalloonSat Extreme kit (B-Extreme) is $48.00 plus $5.00 S&H and includes everything needed to complete the Extreme flight computer, except for the BASIC Stamp, MAX185 ADC, and the camera cables. The BASIC Stamp 2pe is recommended and is available from Parallax . Contact me about getting a MAX186. The camera cables are made to the specification of your camera. A completed BalloonSat Extreme flight computer is available for $58.00 plus $5.00 S&H.